Sergei Timofeev (Sillvestr) (1955–1994) was the leader of Russia’s Orekhovskaya OPG, a powerful criminal syndicate in 1990s Moscow. Born in Novgorod Oblast, he began as a tractor driver before founding a gang that controlled gambling, drugs, and extortion. Married to Olga Zhlobinskaya, his daughter Karina claimed he might have faked his death. Timofeev was killed in a 1994 Moscow car bombing, with the perpetrators never identified. His allies included Viktor Averin and hitman Aleksandr Solonik, while his enemies were Caucasian gangs and the rival Solntsevskaya OPG. He had ties to businessmen and corrupt officials. His life inspired the TV series Brigada.